The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 22, 2009
Filed:
Aug. 17, 2005
Masaru Kamio, Kanagawa-Ken, JP;
Ihachiro Gofuku, Kanagawa-Ken, JP;
Hisanori Tsuda, Kanagawa-Ken, JP;
Yasue Sato, Tokyo, JP;
Masaru Kamio, Kanagawa-Ken, JP;
Ihachiro Gofuku, Kanagawa-Ken, JP;
Hisanori Tsuda, Kanagawa-Ken, JP;
Yasue Sato, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image display apparatus is provided with a vacuum chamber consisting of an electron source substrate and an image display substrate, and an ion pump which is attached to an electron-emitting substrate or the image display substrate and exhausts air from the vacuum chamber by the action of a magnet, wherein the magnet is attached and fixed to the substrate to which the ion pump has been attached. Thereby, the image display apparatus prevents the magnet from applying an excessive force to the ion pump by its weight, and acquires a stable structure without causing a vacuum leak.